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Task Part 1 A 3-phase power transformer (80 kVA, 11000V/415V, 50 Hz) serves a balanced linear 3-phase load. When the transformer is operating at the rated capacity, load power is measured to be 74.8 kW. Because load power factor measurements are not available, you are tasked with estimating the load power factor. Following performance indicators of the transformer are available: voltage regulation = 4.8%, full-load power efficiency = 94%. Utility side voltage can reasonably be assumed to be constant at 11000 V. You have been tasked with comparing the above transformer (from Alpha TF Ltd.) with an 80 KVA, 11000V/415V, 50 Hz, 3-phase transformer from a different supplier, Beta TF Ltd, in terms of percentage voltage regulation and full-load power efficiency. While operating at the rated capacity serving a 3-phase balanced linear load, transformer terminal voltage is measured to be 402 V. Load power factor is 0.82 inductive. Single phase equivalent circuit parameters of this 3-phase transformer are given bellow. Parameters Symbol Value (Per-phase circuit parameter) Primary resistance R 8,0 Ո Secondary resistance R2 0.05 12 Primary leakage reactance * = 18.02 Secondary leakage reactance X2 = WL 0.12 Magnetizing reactance XL 20 ΚΩ Core-loss resistance RC 240 kn